So, I decided I wanted a "real" table, and that the dinette would serve better as a bed, and that I really didn't want a couch....
So here are the results so far, a work in progress. I'll return later and post "finished" images to share.
Couch removed (fear not, I have ever stick of wood and the cusions stowed away, just in case) and new cleats installed to hold the rear and one side.
On the side I'm screwed to the cleat the forms in the inside of the frame there, nice and solid. Below the window I could only find 2 (!?) studs, so I tied into them and added some more screws to the paneling in between - that's what Sunline did with the couch as well so I followed their lead.
Since it's 30" off the deck, it would hit the middle of the door side window, so I am building it short, leaving about 11" on the side which matches the 11" taken up by the "hamper" on the other side. As a result the table is symmetrical to the walls of the trailer, with the hamper on one side, and an open space on the other that I think will get a trash can in the end.
Here's the table top in place, checking the fit of it all, and just how square my cuts and Sunline's construction are. Not too bad.
A lower angle, that leg is just clamped there, I'm not yet certain of where it will go exactly.
The electrical wiring there will be concealed in a compartment that I'll fab up once I get the table in place. I think I'm also going to do a mod there.
I want to switch to regular fuse holders, the kind with a twist cap, and add some switches so I can power the various light circuits for testing and just because...
Well there it is, at the beginning. More to follow.